Home / 400,976.15-553,347.06-219,694.95

Finding the Fourth Proportional to 400,976.15, 553,347.06 and 219,694.95

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Solution

The fourth proportional to 400,976.15, 553,347.06 and 219,694.95 is: 303,179.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,976.15 : 553,347.06 = 219,694.95 : x
  2. Step 2: Convert to fraction form
    400,976.15/553,347.06 = 219,694.95/x
  3. Step 3: Cross multiply
    400,976.15x = 553,347.06 × 219,694.95
  4. Step 4: Simplify right side
    400,976.15x = 121,567,554,679.35
  5. Step 5: Solve for x
    x = 121,567,554,679.35/400,976.15
  6. Step 6: Final answer
    x = 303,179.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.